Subcompact | 9 mm Luger

G43X MOS - The new subcompact GLOCK Slimline pistol in MOS configuration

Chambered in 9 mm Luger the G43X MOS features slide cuts designed for specific micro-optics and the GLOCK Mounting rail slim for mounting accessories. The perfect tactical partner in the well-known GLOCK Slimline design for comfortable concealability.

The G43X MOS has a short subcompact barrel length and a comfortably balanced, versatile compact-size grip with a minimal profile. It incorporates elements of the Slimline series such as the short trigger distance, a frame with a built-in beavertail as seen on the G43 and the G42, a reversible magazine catch. This model has the incredibly accurate, match-grade GLOCK Marksman Barrel (GMB) of the Gen5 series. The G43X MOS also features precision-milled front serrations.
The slim (01) magazine is built in reliable GLOCK style, it has an orange magazine follower for higher visibility and is specifically developed to ensure the 10 rds magazine capacity.

Note: The G43X with the Modular Optic System (MOS) does not come with adapter plates.

G43X MOS with RMSc Shield and Streamlight TLR-7 sub

G43X MOS with Streamlight
TLR-7® sub and RMSc Shield

G43X MOS with Streamlight TLR-7 sub

G43X MOS with
Streamlight TLR-7® sub

G43X MOS with RMSc Shield

G43X MOS with RMSc Shield

GLOCK G43X MOS - modular optic system - MOS

Modular optic system - MOS

The G43X MOS features slide cuts designed for specific micro-optics. The modular optic system (MOS) configuration offers the possibility to simplify the mounting of popular optical sights.

Learn more about the Modular Optic System
GLOCK G43X MOS - mounting rail slim

GLOCK Mounting Rail slim

The frame has an integrated rail in front of the trigger guard. This allows mounting of accessories such as tactical lights and lasers.
GLOCK G43X - front serrations

Front serrations

To provide a different look and an additional tactile surface to do a fast press check before and after firing.
GLOCK G43X MOS - polymer frame with built-in beavertail

Polymer frame with built-in beavertail and special grip texture

The frame of the slimline models has a built-in beavertail design, which allows the shooter to aquire a high and tight grip.

The durable and lightweight polymer frame absorbs recoil due to dampening characteristics of the polymer. The slimline RTF was designed to enhance grip traction without beeing too aggressive.
GLOCK G43X MOS - magazine capacity

Magazine capacity

The 10 rounds magazine slim 01 has a specific single stack design to reduce its dimensions to a minimum. The orange follower allows the shooter to clearly see if there are any rounds left in the magazine or not. The metal insert is covered by a polymer coating.
GLOCK G43X MOS - trigger distance

Trigger distance

The trigger distance of these slimline pistols is reduced compared to other GLOCK models. The grip angle is equivalent to the larger pistols in the GLOCK lineup.
GLOCK G43X MOS - Safe Action® System

Safe Action® System

Three safeties disengage sequentially as the trigger is pulled and automatically reengage when the trigger is released. Same trigger pull for each shot - short trigger reset.
GLOCK G43X MOS - polymer sights

Standard GLOCK polymer sights

The dimensions of the standard GLOCK rear sights were reduced to fit the slim slide.
GLOCK G43X MOS - GLOCK Marksman barrel

GLOCK Marksman barrel

The GLOCK Marksman barrel (GMB) features enhanced barrel rifling based on the proven polygonal barrel design which delivers improved accuracy.
GLOCK G43X MOS - magazine catch

Reversible magazine catch

The magazine catch of the compact slim frame is reversible to switch the catch to the left or right side of the pistol.
GLOCK G43X MOS - slide stop lever

Slide stop lever

A fully functional slide stop lever stops the slide in the rearward postion after having fired the last round in the magazine. 
GLOCK G43X MOS - loaded chamber indicator

Loaded chamber indicator

Visible and palpable indicator as part of the extractor to show whether there is a cartridge in the chamber.

9 mm Luger


Safe Action®

Mag. Capacity

Standard: 10

Barrel Length

87 mm | 3.41 inch


without magazine

461 g | 16.26 oz


with empty magazine

526 g | 18.55 oz


with loaded magazine**

651 g | 22.96 oz

Trigger Pull***

24 N

1 LENGTH (OVERALL)* 165 mm | 6.50 inch
2 SLIDE LENGTH 154 mm | 6.06 inch
3 WIDTH (OVERALL) 28 mm | 1.10 inch
4 SLIDE WIDTH 22 mm | 0.87 inch
5 HEIGHT INCL. MAG. 128 mm | 5.04 inch
6 Sight Radius POLYMER 133 mm | 5.24 inch
Sight Radius STEEL 132 mm | 5.20 inch
Sight Radius GNS 131 mm | 5.16 inch
7 TRIGGER DISTANCE* 67 mm | 2.64 inch

* FOR GEN4/GEN5 MODELS and G44: Check out the Gen5, Gen4 and G44 technology pages for medium/large beavertail backstraps (G19X and G45 see below).
Technical Data are rounded and do not reflect tolerances – they may be altered without notice! Subject to technical changes.
Dimensions of GLOCK pistol G43X MOS
G17 Gen5 MOS Accessories